import 'package:flutter/material.dart';

main() {
  runApp(MaterialApp(home: MyApp(),));
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Icons'),
      ),
      body: Center(
        ///使用内置的 material fonts
        child: Icon(Icons.android, size: 100.0),
      ),
    );
  }
}
